title: Bilateral spontaneous avascular necrosis of the navicular. Case presentation with comparative imaging.
abstract: It is unusual to find such extensive deformity of the navicular in a bilateral and symmetrical fashion. The apparent lack of significant trauma coupled with the patient's unremarkable medical history led the authors to an exclusionary diagnosis of spontaneous osteonecrosis. While changes are clearly evident on plain film radiography, computed tomography and magnetic resonance imaging provide the clinician with a more detailed picture of the extent of destruction.
authors.affiliation: American College of Foot and Ankle Surgeons, Philadelphia, PA, USA.
authors.forename: S F
authors.initials: SF
authors.lastname: Boc
authors.forename: G
authors.initials: G
authors.lastname: Feldman
mesh_terms: D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010020:Osteonecrosis / Q000175:diagnosis*; D013639:Tarsal Bones / Q000473:pathology*; D014057:Tomography, X-Ray Computed